Level 3

816 points

fs tree invalid on APFS

hello,

while doing a first-aid check on my macOS APFS volume, I get the following message in the details as it scans the volume. it is

Checking the fsroot tree.

error: drec_val object (oid 0x51b169): invalid type (0)

fsroot tree is invalid.

The volume /dev/rdisk1s1 could not be verified completely.

can anyone who's knowledgeable with this type of error provide some info about what this error is, whether it's a concern or not ?

MacBook Pro (Retina, 15-inch, Late 2013), macOS Sierra (10.12.4), 2.0 GHz/16GB/256GB

Posted on Oct 1, 2017 3:41 PM

Top-ranking reply

Drewbster

Level 1

4 points

Posted on Dec 14, 2017 10:57 AM

Update:

After installing the latest update (10.13.2) on Dec. 11, the error has now been fixed on my MBP (2016). When running First Aid in Disk Utility, I now get the following report:

Verifying file system.

Volume could not be unmounted.

Using live mode.

Performing fsck_apfs -n -l -x /dev/rdisk1s1

Checking volume.

Checking the container superblock.

Checking the EFI jumpstart record.

Checking the space manager.

Checking the object map.

Checking the APFS volume superblock.

Checking the object map.

Checking the fsroot tree.

Checking the snapshot metadata tree.

Checking the extent ref tree.

Checking the snapshots.

Verifying allocated space.

The volume /dev/rdisk1s1 appears to be OK.

File system check exit code is 0.

Restoring the original state found as mounted.

Operation successful.

Hope the 10.13.2 works for everybody else.

View in context

32 replies

Jan 26, 2018 1:58 AM in response to Gaffable

Glad to hear it worked.

Bartdeus

Level 1

4 points

Dec 14, 2017 5:34 AM in response to zero7404

It's seems that the upgrade from the previous FS to APFS via high sierra upgrade cause the problem on non-apple disk (SSD only ??).

I've try something that have might work:

- make a bootable backup of disk with Copy Carbon (that take only the good files, so the good file size)

- boot on backup

- format completely my SSD and make a new APFS partition

- restore backup on it

- boot normaly on SSD

and now every things seems ok. No more space taken by the system so long (1 week).

Remember that your are responsible of your data by doing this, take good care to make more than one backup of your files

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

fs tree invalid on APFS